STON.fi
The leading AMM DEX on TON
2022
AMM
Yes
8.5/10
Pros
- Deepest TON/USDT and TON/jetton liquidity in the ecosystem
- Clean UI that newcomers can use without DeFi experience
- Audited by SlowMist with a clean public incident record
- Stablecoin pools with reduced slippage
- Native Tonkeeper and Wallet integration via TON Connect
Cons
- Spot only — no perpetuals or limit orders
- No concentrated liquidity (Uni v3-style positions)
- Core contracts only partially open-sourced
What it is
STON.fi is the oldest and highest-volume automated market maker on TON, launched in 2022 by a team with close ties to TON Foundation. It supports the standard x*y=k constant-product pool, dedicated stablecoin pools with lower slippage and LP rewards. The UI is noticeably simpler than Uniswap, which makes STON.fi the default choice for newcomers who arrive via Tonkeeper or Wallet in Telegram. Security has been validated by audits from SlowMist and other independent firms. The target user is a retail trader who needs a clean swap between TON and popular jettons without dropping into Telegram bots.
TVL and volume: Live TVL on DeFiLlama — we don't bake numbers into static JSON because they shift hourly.
What it can do
- Model
- AMM
- Founded
- 2022
- Audit
- Yes
- Open source
- Partial
- TON Connect
- Yes
- Spot
- Yes
- Limit orders
- No
- Perpetuals
- No
- Stable swap
- Yes
- Concentrated liquidity
- No
- LP rewards
- Yes
Editorial score
Scores are editorial, not financial advice. Each axis is 0–10.
- Liquidity 9.0/10
- UX 9.0/10
- Features 7.0/10
- Security 9.0/10
- Overall 8.5/10